Results 91 to 100 of about 66,565 (179)

Loop induced H ± W ∓ Z vertices in the general two Higgs doublet model with CP violation

Journal of High Energy Physics
Understanding symmetry of extended Higgs models helps to construct the theory beyond the standard model and gives important insights for testing these models by experiments.
Shinya Kanemura, Yushi Mura
doaj   +1 more source

Scrutinizing the Alignment Limit in Two-Higgs-Doublet Models. Part 2: $m_H=125$ GeV

, 2015
In the alignment limit of a multi-doublet Higgs sector, one of the Higgs mass eigenstates aligns in field space with the direction of the scalar field vacuum expectation values, and its couplings approach those of the Standard Model (SM) Higgs boson.
Bernon, Jérémy, Gunion, John F., Haber, Howard E., Jiang, Yun, Kraml, Sabine   +4 more
core   +6 more sources

Multi-tau-lepton signatures at the LHC in the two Higgs doublet model

, 2011
A detailed simulation study is performed for multi-tau-lepton signatures at the Large Hadron Collider, which can be used to probe additional Higgs bosons with lepton-specific Yukawa interactions. Such an extended Higgs sector is introduced in some of new
Kanemura, Shinya, Tsumura, Koji, Yokoya, Hiroshi   +2 more
core   +1 more source

process and multi-Higgs doublet model [PDF]

Physics Letters B, 1997
Yasuhiro Okada, Yasuhiro Shimizu, Minoru Tanaka   +2 more
openaire   +1 more source

CP-odd invariants for multi-Higgs models: applications with discrete symmetry

, 2016
CP-odd invariants provide a basis independent way of studying the CP properties of Lagrangians. We propose powerful methods for constructing basis invariants and determining whether they are CP-odd or CP-even, then systematically construct all of the ...
King, Stephen F., Luhn, Christoph, Neder, Thomas, Varzielas, Ivo de Medeiros   +3 more
core   +1 more source

Impact of new experimental data on the C2HDM: the strong interdependence between LHC Higgs data and the electron EDM

Journal of High Energy Physics
The complex two-Higgs doublet model (C2HDM) is one of the simplest extensions of the Standard Model with a source of CP-violation in the scalar sector. It has a $${\mathbb{Z}}_{2}$$ symmetry, softly broken by a complex coefficient. There are four ways to
Thomas Biekötter, Duarte Fontes, Margarete Mühlleitner, Jorge C. Romão, Rui Santos, João P. Silva   +5 more
doaj   +1 more source

Constraining the Higgs trilinear coupling from an SU(2) quadruplet with bounded-from-below conditions

Journal of High Energy Physics
Integrating out a heavy scalar can cause the Higgs trilinear coupling to deviate from its Standard Model value: a good example is provided by an SU(2) quadruplet. Constraints on the full theory, however, can limit the size of the deviation.
K. Kannike
doaj   +1 more source

Effective 2HDM Yukawa interactions and a strong first-order electroweak phase transition

Journal of High Energy Physics
The top quark as the heaviest particle in the Standard Model (SM) defines an important mass scale for Higgs physics and the electroweak scale itself. It is therefore a well-motivated degree of freedom which could reveal the presence of new interactions ...
Anisha, Duarte Azevedo, Lisa Biermann, Christoph Englert, Margarete Mühlleitner   +4 more
doaj   +1 more source

Neutrino masses in a conformal multi-Higgs-doublet model

, 2018
22 ...
Fink, Manuel, Neufeld, Helmut
openaire   +2 more sources

Sensitivity to triple Higgs couplings via di-Higgs production in the RxSM at the (HL-)LHC and future e + e − colliders

Journal of High Energy Physics
The real Higgs singlet extension of the Standard Model (SM) without Z 2 symmetry, the RxSM, is the simplest extension of the SM that features a First Order Electroweak Phase Transition (FOEWPT) in the early universe. The FOEWPT is one of the requirements
F. Arco, S. Heinemeyer, M. Mühlleitner, A. Parra Arnay, N. Rivero González, A. Verduras Schaeidt   +5 more
doaj   +1 more source